Cat unable/unwilling to lick?

On Saturday my cat was attacked by a rather large what I assume to be stray. She's usually confident in a fight bit I think he caught her off guard. I checked for visible injury and couldn't see anything but since then she's been more aggressive and sleeping a lot.

What I have noticed however is that she doesn't appear to be licking. She makes the motions but doesn't stick out her tongue. She doesn't seem to be grooming properly and I haven't seen her drinking. She's eating but I think that's cause she can pick up food with her teeth.

She's a moggy, about 4 years old, spayed. Any clue what might be going on? I have a vet appointment tomorrow, but going really stresses her out, if like to avoid it if possible...

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